Pipe-making machine.



No. 668,330. Patented Feb. I9, |9o| E. HANcox. PIPE MAKING MACHINE.

(Application med sept. 22, 1960.)

6 Sheets-Sheet l.

(N0 Modal.)

No. 663,330. Patented Feb. I9, |90|.

' E. HANCOX.

PIPE MAKING MACHINE.

(Application Bled Sept. 22, 1900.) (No Model.) 6 Sheets-Shaat 2.

Nu. 668,330. Patented Feb. I9, I90I.

E. HANCOX.

PIPE MAKING MACHINE.

(Application led Sept, 22, 1900.) (Nu Model.) 6 Sheets-Shut 3:..

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PIPE 'MAKING MACHINE. (No und (Application led Sept". 22, 1900.)

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E'. HANCX. PIPE MAKING MACHINE.

[Application led Sept. 22, 1900.) (No AModel.)

No. 668,330. Patented Feb. I9,v |90I.

6 Sheets`$heet 5.

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E, HANCX.

PIPE MAKING MACHINE. (no mmm l (APN t fn dspt 22 w00 nurse @autres Amertries.

EDVIN HANCOX, OF STOCKTON-ON-TEES, ENGLAND.

PIPEmMAKlNG MACHINE.

SPECIFICATION forming' part of Letters Patent No. 668,330, datedFebruary 19, 1901. Application filed September 22,1900. Serial No.30.873. (No model.)

To all whom t may concern:

Be it known that I, EDWIN HANCOX, a subject of I-Ier Majesty QueenVictoria, residing at 8 Dixon street, Stockton-on-Tees, in the county ofDurham, England, have invented a new and useful Pipe-Making Machine, ofwhich the following is a specification.

This invention relates to the manufacture of rivetless pipes from metalplates the longitudinal edges of which are upset into adove' tail orapproximately dovetail shape. The plates are then bent into an arc of acircle and are joined together so as to produce a pipe by closing downupon their upset or thickened edges the sides of alocking bar or bars ofH- section.

The present invention consists in the peculiar construction andarrangement of machinery or apparatus hereinafter described, whereby thelongitudinal edges of said plates are upset or thickened into a dovetailor approximately dovetail shape.

In order that my invention maybe fully understood, I will now describethe same with reference to the annexed drawings, wherein- Figures l and2 are plans of a machine for the purpose set forth constructed inaccordance with my invention. Figs. 3 and iE are side elevations ofFigs. l and 2. Fig. 5 is a transverse vertical section on line n", oc,Fig. l. Figs. 6 to 13 are details hereinafter referred to.

Similar letters refer to like parts in all the figures. l

A is the bed-plate or base of the machine, and B B are castings formingthe side frames thereof and secured to the bed-plate A by the bolts a.These side frames are adjustable toward and from one another to suitdifferent Widths of plates to be treated, and in the drawings the sideB' is represented as being adjustable, its holding-down bolts a passingthrough slots a', which extend transversely of the bed-plate.

(l C are stout screw-bolts which hold the frames firmly together andresist the stresses they undergo when the machine is at work.

D D and D D are a series of pairs 0f feedrollers, each roller of eachpair being divided transversely or made in sections, so that the widthof the rollers may be varied to suit that of the plate operated upon.The construction of theser rollers will be hereinafter described.

`the desired position.

b indicates the bearing blocks or brasses for the roller-shafts, whichslide within vertical slots formed in the side frames B B and are keptpressed together by the springs c and regulating-screws d. The functionof these rollers D and D is to feed forward the plate to be operatedupon first between the `planing-tools E and then between theupsetting-rollers F F FFS. Provisionis made for fine lateral adjustmentof theplaning-tools and also for lateral and vertical adjustment of theupsetting-rollers, as will hereinafter be described.

I will now describe fully the construction and arrangement of thefeed-rollers D, which draw the plate between the planing-tools E, andalso of the feed-rollers D', which draw it between theupsettingrollei's. In each the object is simply to make provision forfinely adjusting the length over all of the rollers, and although in thedrawings the constructional details of the rollers D slightly differfrom those of the rollers D a similar construction might well be adoptedin both cases.

Referring to the rollers D, the saine slide freely on the screw-threadedshafts e, with which they are caused to rotate by a slot and feather andupon which they are adjusted and fixed in the desired position by thenuts e. The rollers D are adjusted in a similar manner as to theirlength by means of locknuts e and are caused to rotate with the shafts eby making portions of the latter of rectangular section, as seen inFigs. l, 2, and 5. .e2 indicates sleeves slipped on the shafts e andcaused to revolve therewith by a slot and feather, said sleeves fittingthe bearings on the adjustable side B' of the machine. e3 indicateslock-nuts for fixing these sleeves in The rollers are driven bybevel-gear from the shaft O, mounted in the bearings O', secured to theside fratrie B.

I will now describe the mounting of the planing-tools and the means foradjusting them laterally.

G G, Figs. 9, l0, and ll, are carriers which fit within recesses in theside frames B B' and are held therein by the bolts c, which pass throughthe slots g. Vertical adjustment IOO can thus be effected on looseningsaid bolts. The tools E pass through holes in the carrier G and areadjust-ably secured therein by the Vss or length of the feed-rollersD Dis also regu-- screws h. The rear ends of the tools E project throughapertures in the side frames B B', so that lateral adjustment of thetools may readily be effected on loosening the screws h. Each tool Eshould be set slightly in advance of that preceding it, so thatsuccessive cuts will be taken off the edges of the plate tillsufficiently reduced.

The upsetting-rollers F F' F2 F3 have circumferential grooves varying inwidth and section, as shown in Fig. 8.- The plate is first operated onby the rollers F, the grooves of which are slightly wider than the plateedges. The rollers F' then comeinto operation, which have grooves ofsimilar section, but slightly wider and of a more obtuse angle, so as toadmit and take on the partly-upset edges. The grooves of the nextrollers F2 are again somewhat wider and of a more obtuse angle than F',and the grooves of the finishing-rollers F3 are somewhat wider than F2and slightly curved at the bottom. These finishing-rollers have verylittle upsetting action, but give a smooth rounded finish to the sideedges. I will now describe the manner of mounting these rollers wherebyboth lateral and vertical adjustment may be readily effected to anicety.

G', Figs. 6 and 7, indicates carriers fitting recesses in the sideframes BB and secured therein .by bolts gin a similar manner to thecarriers Gr,before described. The upsettingrollers F F F2 F2 are mountedon the pivots f within recesses in a web G2, formed on the carrier.

h' indicates adjusting-screws threaded in the web G2 and bearing withtheir lower ends on the side frames B B', Fig. 5. h2 indicatesadjusting-screws threaded in the side frames aforesaid and bearing onthe backs of the carriers G'. On slackening the nuts g fine adjustmentof the carriers G', which carry the upsetting-rollers, may be effectedboth laterally and vertically by means of the adjustingscrews h' h2,respectively.

The plate when under treatment by the` planing-tools E is supported andguided outside the feed-rollers D by the rollers L L', Figs. 12 and 13,which bear against the upper and lower and side edges, respectively.These rollers are mounted in brackets M, which are xed to the sideframes B B' by the screwstem m and lock-nuts carried thereby. Thefunction of these rollers L L' is merely, as above stated, to guide andsupport the plate between the planing-tools, upon which plate they haveno other' action whatever.

The operation of the machine is as follows: The side frame B is roughlyadjusted to suit the width of the plate to be treated by loosening itsholding-down bolts a and also the lock-nuts e2, which fix the sleeves e2in position on the feed-roller shafts e. The width lated, as beforedescribed, so that only those portions of the plate to be upset willproject on either side thereof, by means of the nuts e. Fine adjustmentof the planing-tools E and upsetting-rollers is then effected, as beforeexplained. The plate to be treated is inserted between the rollers L L'at the right-hand end of the machine and drawn by the feed-rollers D D'successively between the several pairs of planing and upsetting tools,its edges being rst planed and then gradually upset during its transit.

Having now particularly described and ascertained the nature of the saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is- .1. In machinery or apparatus for the purpose setforth, a series of pairs of feed-rollers D D' adjustable as to theirlength, in combination with a series of pairs of planing-tools andupsetting-rollers, between which the plate to be treated is drawn by thefeed-rollers, each pair of planing-tools and upsetting-rollers beingadjustable toward and from one another, whereby plates of dilferentwidths may be operated upon, substantially as described.

2. In machinery or apparatus for the purpose set forth, the combinationof a bed-plate or base, side frames carried thereby and adjustable as totheir width apart, upsettingrollers carried by said side frames, meansfor adjusting said rollers vertically, and feedrollers of adjustablelength, journaledin bearings in said side frames, whereby theedges of the plate are drawn between the upsettingrollers, substantiallyas described.

3. In machinery or apparat-us for the purpose set forth, the combinationof a bed-plate, side frames carried thereby and movable toward and fromone another, tool-carriers G G' adjustable both vertically and laterallyin said frames, and carrying respectively planing-tools andupsetting-rollers, and feed-rollers D D', whereby the plate is drawniirst between the planing-tools and then between the upsetting-rollers,substantially as described.

4:. In machinery or apparatus for the purpose set forth, the employmentof feed-rollers D D', each composed of roller-sections, adjustablelongitudinally of a screw-threaded shaft by lock-n nts e', incombination with tools for imparting the desired upset shape to theplate edges, which are drawn between said tools by feed-rollers, thecarriers of opposite tools being adjustable toward and from one another,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

' EDWIN HANCOX.

Witnesses:

T. W, MALKIN, GEO. APPLEBY.

